US6073849A - Electronic edge detection system using a second derivative signal processor - Google Patents

Electronic edge detection system using a second derivative signal processor Download PDF

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Publication number
US6073849A
US6073849A US08/961,872 US96187297A US6073849A US 6073849 A US6073849 A US 6073849A US 96187297 A US96187297 A US 96187297A US 6073849 A US6073849 A US 6073849A
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United States
Prior art keywords
signal
derivative
input signal
filter
pass filter
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US08/961,872
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English (en)
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James E. Colley
Patrick M. O'Donnell
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Datalogic Scanning Inc
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PSC Scanning Inc
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Priority to US08/961,872 priority Critical patent/US6073849A/en
Assigned to PSC SCANNING, INC. reassignment PSC SCANNING, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COLLEY, JAMES E., O'DONNELL, PATRICK M.
Priority to JP2000519388A priority patent/JP2001522103A/ja
Priority to PCT/US1998/021803 priority patent/WO1999023598A1/en
Priority to GB0010474A priority patent/GB2346475B/en
Priority to DE19882768.7A priority patent/DE19882768B3/de
Priority to DE19882768T priority patent/DE19882768T1/de
Publication of US6073849A publication Critical patent/US6073849A/en
Application granted granted Critical
Assigned to FLEET NATIONAL BANK, AS ADMINISTRATIVE AGENT reassignment FLEET NATIONAL BANK, AS ADMINISTRATIVE AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OPTEL SYSTEMS LIMITED, OPTICAL STORAGE INTERNATIONAL, PSC AUTOMATION ( FORMERLY LAZERDATA CORPORATION), PSC SCANNING, INC. (FORMERLY SPECTRASACN, INC., SPECTRA-PHYSICS SCANNING SYSTEMS, INC. AND PSC ACQUISITION, INC., PSC, INC.
Assigned to PSC INC. reassignment PSC INC. RELEASE OF SECURITY INTEREST Assignors: LJ SCANNER HOLDINGS, INC., AS SUCCESSOR IN INTEREST TO FLEET NATIONAL BANK (A/K/A FLEET BANK), AS ADMINISTRATIVE AGENT
Assigned to WELLS FARGO FOOTHILL, INC. reassignment WELLS FARGO FOOTHILL, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PSC SCANNING, INC.
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Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Analysis (AREA)
  • Image Processing (AREA)
US08/961,872 1996-11-01 1997-10-31 Electronic edge detection system using a second derivative signal processor Expired - Lifetime US6073849A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US08/961,872 US6073849A (en) 1996-11-01 1997-10-31 Electronic edge detection system using a second derivative signal processor
DE19882768.7A DE19882768B3 (de) 1997-10-31 1998-10-15 Zweiter Ordnung differenzierender Signalprozessor für einen Strichkodescanner sowie Signalverarbeitungsverfahren zum Verwenden von Strichkodescannern
PCT/US1998/021803 WO1999023598A1 (en) 1997-10-31 1998-10-15 Electronic edge detection system
GB0010474A GB2346475B (en) 1997-10-31 1998-10-15 Electronic edge detection system
JP2000519388A JP2001522103A (ja) 1997-10-31 1998-10-15 電子エッジ検出装置
DE19882768T DE19882768T1 (de) 1997-10-31 1998-10-15 Elektronisches Randerfassungssystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3011896P 1996-11-01 1996-11-01
US08/961,872 US6073849A (en) 1996-11-01 1997-10-31 Electronic edge detection system using a second derivative signal processor

Publications (1)

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US6073849A true US6073849A (en) 2000-06-13

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US08/961,872 Expired - Lifetime US6073849A (en) 1996-11-01 1997-10-31 Electronic edge detection system using a second derivative signal processor

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US (1) US6073849A (de)
JP (1) JP2001522103A (de)
DE (2) DE19882768B3 (de)
GB (1) GB2346475B (de)
WO (1) WO1999023598A1 (de)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6382510B1 (en) * 1999-02-02 2002-05-07 Industrial Technology Research Institute Automatic inspection system using barcode localization and method thereof
EP1205873A1 (de) * 2000-11-14 2002-05-15 Datalogic S.P.A. Verfahren zur Lokalisierung der Übergänge zwischen Teilen eines Streifenkodes
US6497366B1 (en) * 1997-12-31 2002-12-24 Ncr Corporation Methods and apparatus for dual channel video recovery in bar code scanners
US6499662B1 (en) * 1998-09-14 2002-12-31 Psc Scanning, Inc. Fast edge detection system tolerant of high degree of intersymbol interference
EP1328062A1 (de) * 2002-01-09 2003-07-16 Alcatel Kaskadenanordnung von Filtern von niedrigem Grad und Methode zum Design dersselben
US20040074968A1 (en) * 1995-12-18 2004-04-22 Mark Lucera Laser scanning bar code symbol reader employing variable passband filter structures having frequency response characteristics controlled by time-measurement of laser-scanned bar code symbol elements
WO2005124661A1 (en) 2004-06-10 2005-12-29 Psc Scanning, Inc. System, circuit, and method for edge detection in a binary optical code
US7118042B2 (en) * 2002-01-18 2006-10-10 Microscan Systems Incorporated Method and apparatus for rapid image capture in an image system
US20060266837A1 (en) * 2005-05-26 2006-11-30 Dariusz Madej Method and system for decoding a barcode
US20070272754A1 (en) * 2006-05-26 2007-11-29 Symbol Technologies, Inc. Imaging reader target object finder system
US20070295050A1 (en) * 2006-04-27 2007-12-27 Fatigue Technology, Inc. Alignment device and methods of using the same
US20080128503A1 (en) * 2002-01-18 2008-06-05 Microscan Systems, Inc. Method and apparatus for rapid image capture in an image system
US20080266818A1 (en) * 2007-04-26 2008-10-30 Roeland Collet Scanning module for a scanner system having a MEMS device or the like
US20080266629A1 (en) * 2007-04-26 2008-10-30 Brown Dean R MEMS device of a scanner system having magnetic components disposed opposite to reflectance path
US20080266628A1 (en) * 2007-04-26 2008-10-30 Brown Dean R MEMS device having a drive coil with curved segments
US20080266627A1 (en) * 2007-04-26 2008-10-30 Brown Dean R Non-resonant drive for adaptive trajectory of a scanner system having a MEMS device
US20080265148A1 (en) * 2007-04-26 2008-10-30 Gibson Gregory T Determining an operational state of a MEMS based laser scanner
US7619802B2 (en) 2007-04-26 2009-11-17 Microvision, Inc. Suspension for maintaining mirror flatness of a MEMS device in a scanner system or the like
US7717341B2 (en) 2007-04-26 2010-05-18 Microvision, Inc. Bar code scanner having an adaptive threshold using a first derivative amplitude
US20100290090A1 (en) * 2006-07-04 2010-11-18 Canon Kabushiki Kaisha Image processing apparatus, image processing method, and program
DE19882767B3 (de) * 1997-10-31 2014-03-20 Datalogic ADC, Inc. (n.d.Ges. d. Staates Delaware) Randerfassungsverfahren und -vorrichtung für durch Schrotrauschen begrenzte Signale
US20150161429A1 (en) * 2013-12-10 2015-06-11 Hand Held Products, Inc. High dynamic-range indicia reading system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585159B1 (en) * 1999-11-02 2003-07-01 Welch Allyn Data Collection, Inc. Indicia sensor system for optical reader
US6382511B1 (en) * 2000-04-26 2002-05-07 Ncr Corporation Methods and apparatus for digitizing and processing of analog barcode signals
US6502751B1 (en) * 2000-04-26 2003-01-07 Ncr Corporation Methods and apparatus for dual thresholding in processing of barcode signals

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US4000397A (en) * 1975-03-21 1976-12-28 Spectra-Physics, Inc. Signal processor method and apparatus
US5103080A (en) * 1990-12-10 1992-04-07 Symbol Technologies, Inc. Digitizer signal processing circuit for a bar code
US5140146A (en) * 1989-11-20 1992-08-18 Symbol Technologies, Inc. Bar code symbol reader with modulation enhancement
US5210397A (en) * 1990-05-03 1993-05-11 Psc, Inc. Differentiating and integrating circuit for translating bar code signals into corresponding pulses
US5272323A (en) * 1989-11-22 1993-12-21 Symbol Technologies, Inc. Digitizer for barcode scanner
US5298728A (en) * 1991-11-01 1994-03-29 Spectra-Physics Scanning System, Inc. Signal processing apparatus and method
US5371361A (en) * 1993-02-01 1994-12-06 Spectra-Physics Scanning Systems, Inc. Optical processing system
US5436440A (en) * 1989-06-16 1995-07-25 Symbol Technologies, Inc. Digitizing circuit for a laser scanner using digital and synchronizing signals
US5446272A (en) * 1989-06-16 1995-08-29 Symbol Technologies, Inc. System for digitizing a scanned signal indicating changes in signal intensity
US5463211A (en) * 1993-05-07 1995-10-31 Spectra-Physics Scanning Systems, Inc. Method and apparatus for detecting transitions in a time sampled input signal
US5761341A (en) * 1994-10-28 1998-06-02 Oki Electric Industry Co., Ltd. Image encoding and decoding method and apparatus using edge synthesis and inverse wavelet transform
US5814803A (en) * 1994-12-23 1998-09-29 Spectra-Physics Scanning Systems, Inc. Image reader with multi-focus lens

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US5151580A (en) 1990-08-03 1992-09-29 Symbol Technologies, Inc. Light emitting diode scanner
US5493108A (en) 1992-10-14 1996-02-20 Spectra-Physics Scanning Systems, Inc. Method and apparatus for recognizing and assembling optical code information from partially scanned segments
US5446271A (en) 1993-08-06 1995-08-29 Spectra-Physics Scanning Systems, Inc. Omnidirectional scanning method and apparatus

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US4000397A (en) * 1975-03-21 1976-12-28 Spectra-Physics, Inc. Signal processor method and apparatus
US5545888A (en) * 1989-06-16 1996-08-13 Symbol Technologies Inc. Digitizer circuit for a bar code reader
US5436440A (en) * 1989-06-16 1995-07-25 Symbol Technologies, Inc. Digitizing circuit for a laser scanner using digital and synchronizing signals
US5446272A (en) * 1989-06-16 1995-08-29 Symbol Technologies, Inc. System for digitizing a scanned signal indicating changes in signal intensity
US5140146A (en) * 1989-11-20 1992-08-18 Symbol Technologies, Inc. Bar code symbol reader with modulation enhancement
US5272323A (en) * 1989-11-22 1993-12-21 Symbol Technologies, Inc. Digitizer for barcode scanner
US5210397A (en) * 1990-05-03 1993-05-11 Psc, Inc. Differentiating and integrating circuit for translating bar code signals into corresponding pulses
US5103080A (en) * 1990-12-10 1992-04-07 Symbol Technologies, Inc. Digitizer signal processing circuit for a bar code
US5298728A (en) * 1991-11-01 1994-03-29 Spectra-Physics Scanning System, Inc. Signal processing apparatus and method
US5371361A (en) * 1993-02-01 1994-12-06 Spectra-Physics Scanning Systems, Inc. Optical processing system
US5463211A (en) * 1993-05-07 1995-10-31 Spectra-Physics Scanning Systems, Inc. Method and apparatus for detecting transitions in a time sampled input signal
US5761341A (en) * 1994-10-28 1998-06-02 Oki Electric Industry Co., Ltd. Image encoding and decoding method and apparatus using edge synthesis and inverse wavelet transform
US5814803A (en) * 1994-12-23 1998-09-29 Spectra-Physics Scanning Systems, Inc. Image reader with multi-focus lens

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Electronic Filter Design Handbook,", pp. 2-53-2-68 and pp. 12-45, 12-50-12-51, 12-59-12-60, Arthur B. Williams (McGraw-Hill) (1981) missing month.
Electronic Filter Design Handbook, , pp. 2 53 2 68 and pp. 12 45, 12 50 12 51, 12 59 12 60, Arthur B. Williams (McGraw Hill) (1981) missing month. *

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7207492B2 (en) * 1995-12-18 2007-04-24 Metrologic Instruments, Inc. Laser scanning bar code symbol reader employing variable passband filter structures having frequency response characteristics controlled by time-measurement of laser-scanned bar code symbol elements
US20040074968A1 (en) * 1995-12-18 2004-04-22 Mark Lucera Laser scanning bar code symbol reader employing variable passband filter structures having frequency response characteristics controlled by time-measurement of laser-scanned bar code symbol elements
DE19882767B3 (de) * 1997-10-31 2014-03-20 Datalogic ADC, Inc. (n.d.Ges. d. Staates Delaware) Randerfassungsverfahren und -vorrichtung für durch Schrotrauschen begrenzte Signale
US6497366B1 (en) * 1997-12-31 2002-12-24 Ncr Corporation Methods and apparatus for dual channel video recovery in bar code scanners
US6499662B1 (en) * 1998-09-14 2002-12-31 Psc Scanning, Inc. Fast edge detection system tolerant of high degree of intersymbol interference
US6382510B1 (en) * 1999-02-02 2002-05-07 Industrial Technology Research Institute Automatic inspection system using barcode localization and method thereof
EP1205873A1 (de) * 2000-11-14 2002-05-15 Datalogic S.P.A. Verfahren zur Lokalisierung der Übergänge zwischen Teilen eines Streifenkodes
US20020056753A1 (en) * 2000-11-14 2002-05-16 Michele Benedetti Method for locating the transitions between the elements of a bar code
US6834806B2 (en) * 2000-11-14 2004-12-28 Datalogic S.P.A. Method for locating the transitions between the elements of a bar code
EP1328062A1 (de) * 2002-01-09 2003-07-16 Alcatel Kaskadenanordnung von Filtern von niedrigem Grad und Methode zum Design dersselben
US20030155994A1 (en) * 2002-01-09 2003-08-21 Alcatel Cascaded arrangement of lower order filters and method of designing the same
US6954119B2 (en) * 2002-01-09 2005-10-11 Alcatel Cascaded arrangement of lower order filters and method of designing the same
US20080128503A1 (en) * 2002-01-18 2008-06-05 Microscan Systems, Inc. Method and apparatus for rapid image capture in an image system
US20070023526A1 (en) * 2002-01-18 2007-02-01 Moore James W Method and apparatus for rapid image capture in an image system
US7341190B2 (en) 2002-01-18 2008-03-11 Microscan Systems Incorporated Method and apparatus for rapid image capture in an image system
US7118042B2 (en) * 2002-01-18 2006-10-10 Microscan Systems Incorporated Method and apparatus for rapid image capture in an image system
US8146823B2 (en) 2002-01-18 2012-04-03 Microscan Systems, Inc. Method and apparatus for rapid image capture in an image system
WO2005124661A1 (en) 2004-06-10 2005-12-29 Psc Scanning, Inc. System, circuit, and method for edge detection in a binary optical code
US20060266837A1 (en) * 2005-05-26 2006-11-30 Dariusz Madej Method and system for decoding a barcode
US8047440B2 (en) * 2005-05-26 2011-11-01 Symbol Technologies, Inc. Method and system for decoding a barcode
US20070295050A1 (en) * 2006-04-27 2007-12-27 Fatigue Technology, Inc. Alignment device and methods of using the same
US20070272754A1 (en) * 2006-05-26 2007-11-29 Symbol Technologies, Inc. Imaging reader target object finder system
US7857219B2 (en) * 2006-05-26 2010-12-28 Symbol Technologies, Inc. Imaging reader target object finder system
US8237991B2 (en) * 2006-07-04 2012-08-07 Canon Kabushiki Kaisha Image processing apparatus, image processing method, and program
US20100290090A1 (en) * 2006-07-04 2010-11-18 Canon Kabushiki Kaisha Image processing apparatus, image processing method, and program
US20090212203A1 (en) * 2007-04-26 2009-08-27 Microvision, Inc. System for Determining An Operational State of a MEMS Based Display
US20080265148A1 (en) * 2007-04-26 2008-10-30 Gibson Gregory T Determining an operational state of a MEMS based laser scanner
US7619802B2 (en) 2007-04-26 2009-11-17 Microvision, Inc. Suspension for maintaining mirror flatness of a MEMS device in a scanner system or the like
US7679804B2 (en) 2007-04-26 2010-03-16 Microvision, Inc. Non-resonant drive for adaptive trajectory of a scanner system having a MEMS device
US7717341B2 (en) 2007-04-26 2010-05-18 Microvision, Inc. Bar code scanner having an adaptive threshold using a first derivative amplitude
US7550713B2 (en) 2007-04-26 2009-06-23 Microvision, Inc. System for determining an operational state of a MEMS based laser scanner
US7838817B2 (en) 2007-04-26 2010-11-23 Microvision, Inc. System for determining an operational state of a MEMS based display
US7616366B2 (en) 2007-04-26 2009-11-10 Microvision, Inc. MEMS device having a drive coil with curved segments
US7857223B2 (en) 2007-04-26 2010-12-28 Microvision, Inc. Scanning module for a scanner system having a MEMS device or the like
US20080266627A1 (en) * 2007-04-26 2008-10-30 Brown Dean R Non-resonant drive for adaptive trajectory of a scanner system having a MEMS device
US20080266628A1 (en) * 2007-04-26 2008-10-30 Brown Dean R MEMS device having a drive coil with curved segments
US20080266629A1 (en) * 2007-04-26 2008-10-30 Brown Dean R MEMS device of a scanner system having magnetic components disposed opposite to reflectance path
US20080266818A1 (en) * 2007-04-26 2008-10-30 Roeland Collet Scanning module for a scanner system having a MEMS device or the like
US20150161429A1 (en) * 2013-12-10 2015-06-11 Hand Held Products, Inc. High dynamic-range indicia reading system

Also Published As

Publication number Publication date
GB2346475A (en) 2000-08-09
DE19882768T1 (de) 2001-05-10
GB0010474D0 (en) 2000-06-14
JP2001522103A (ja) 2001-11-13
DE19882768B3 (de) 2019-03-28
WO1999023598A1 (en) 1999-05-14
GB2346475B (en) 2001-10-03

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